Preventive Maintenance | Andrew ES76PK-1 instruction

•Check all electrical component for dirt, cracks, chips, breaks, discoloration, and other

signs of deterioration and damage. A discolored, blistered, or burnt condition is evidence of overload.

•Operate the azimuth and elevation drives as well as the feed rotation in both the plus

and minus direction from the local control/motor drive controller at least once every three months during antenna down time. Check the mechanical limit switches provided at the end points stop antenna and feed movement, and limit travel to prevent structural interference and damage. Check the mechanical limit switches for corrosion and water entry and the arm on each feed limit switch for free movement without binding. Be cer- tain both feed rotation limit switch arms are not distorted and ride centrally on the actu- ating cam to open their corresponding limit switch.

•Inspect the azimuth and elevation jackscrew boots for security of attachment at both

ends, for abrasion, tears, cuts, brittleness and other damage that may expose the jackscrew to the environment (water, dust, etc.). Minor repairs can be made with RTV- 108 silicone rubber sealant.

•Visually inspect the feed window for dirt and the feed, feed supports, feed window,

and reflector for distortion, foreign object damage and environmental deterioration due to ice and snow, dust, rain, hail, and high winds, etc. which may cause electrical compo- nent and/or structural deformation.

•Check the cable attachment to the resolvers and to the LNA or LNB’s and enclosure

mount interface for security, the cable rouging for secure hanger attachment and the cable insulation for cuts, cracking, abrasion, and other deterioration. Check the LNA or LNB’s and the resolvers for a secure mechanical attachment. Ensure proper torquing of polarization drive gear box setscrews and appropriate tensioning of corresponding drive chain assembly, if applicable.

•Check (if applicable) that the drain holes in the bottom of the enclosure are not

obstructed and there is no evidence of water accumulation. Check the enclosure doors for proper closure and that the door seals are intact, not torn, abraided or otherwise damaged. Check that all other seals are intact and if not, use a coating of RTV-108 (sili- cone rubber sealant) to seal any exposed electrical fitting, bolt hold, or other possible water entry to electrical components in order to maintain a weatherproof condition. If the enclosure is provided with a vent fan, check for free operation of the fan blade. The fan bearings are permanently lubricated; any binding, abnormal noise or vibration necessi- tates replacement of he fan assembly. Check and replace the fan filter element if it appears dirty or obstructed with dust.

•Check for the appearance of surface lubricants that will cause the accumulation of dirt

and grime. Clean off all excess surface lubricants with a cloth and if required, a cloth dampened not wetted with trichlorethylene, or equal.

48	Preventive Maintenance

ES76PK-1 specifications

The Andrew ES76PK-1 is a robust and highly efficient satellite communication antenna designed for both commercial and military applications. Its innovative design and advanced features make it an exceptional choice for high-performance connectivity.

One of the standout characteristics of the ES76PK-1 is its impressive gain. With a gain of approximately 76 dBi across a wide range of frequencies, it ensures optimal signal reception and transmission even in challenging environments. This high gain makes it ideal for applications requiring reliable long-distance communication, such as remote site operations or disaster recovery efforts.

The construction of the ES76PK-1 also prioritizes durability and resilience. Built with sturdy materials, this antenna is resistant to harsh weather conditions, including high winds, rain, and extreme temperatures. Its lightweight yet robust design allows for easier installation and maintenance, making it suitable for both fixed and mobile setups.

In terms of technology, the Andrew ES76PK-1 leverages advanced polarization techniques, which enhance its ability to transmit and receive signals effectively. This polarization capability ensures minimal signal degradation and interference, providing users with consistent and high-quality communication links. Furthermore, the antenna supports multiple frequency bands, thus offering flexibility in deployment and compatibility with various satellite systems.

The antenna's design incorporates a high level of precision engineering. This not only contributes to its excellent performance but also allows for fine azimuth and elevation adjustments. This feature is crucial in aligning the antenna accurately with satellite signals, further improving the quality of service for users.

Another key aspect of the Andrew ES76PK-1 is its compatibility with a range of RF systems. This versatility makes it a favored choice among service providers and enterprises looking to implement or upgrade their satellite communication infrastructure.

In summary, the Andrew ES76PK-1 stands out in the competitive landscape of satellite communication technologies. With its high gain, durable construction, advanced polarization, and compatibility with various systems, it meets the stringent demands of modern communication needs. This antenna is an excellent investment for anyone looking to achieve reliable and efficient satellite connectivity.